The sound effect of Godzilla's dorsal fins charging up before his atomic breath in Godzilla: King of the Monsters (2019) is an altered version of King Kong's dying heartbeat in King Kong (
Atomic breath | Headhunter's Holosuite Wiki | Fandom
How Powerful Godzilla's Atomic Breath Is Confirmed
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Why did they buff Godzilla's atomic breath in Godzilla vs Kong? - Quora
Godzilla: King of the Monsters New Image Provides First Look at Atomic Breath - IGN
Atomic breath | Movie Database Wiki | Fandom
EVOLUTION of GODZILLA'S ATOMIC BREATH: Comparison (1954-2021) - YouTube
Which is more powerful, Godzillas Atomic Breath 2021 or Ghidorahs Gravity beams 2019? - Quora
In the Monsterverse or even other sources, why does Godzilla's atomic breath charge start from his tail? Is there an in-universe explanation or is it just a “cool factor”? - Quora
How Godzilla Got His Atomic Breath In The MonsterVerse